Red AXS E1 Rear Derailleurs MTB Combine any length Quarq DUB

Combine any length Quarq DUB crank arm with DFour DUB power meter for Shimano® R9100

Compatible with Flight Attendant

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Splitfire combines titanium durability

Providing 'souless

Red AXS E1 Rear Derailleurs MTB Combine any length Quarq DUBNot just fast and reliable front shifts, but silent running across the whole cassette. The RED AXS front derailleur uses Yaw technology with electronic trim to ensure the fastest possible shift while eliminating chain rub in all combinations, with the easiest setup around, thanks to a brilliant new tool. AXS enabled for easy wireless setup, monitoring, personalization, and reliability Refined cage shape results in faster and more accurate front shifts